It's been 50 years since the release of one of the most famous albums ever - the Beatles' Sergeant Pepper's Lonely Hearts Club Band. So what was its effect in New Zealand? Audio Culture's Chris Bourke tells Simon Morris it led to a revolution, in turning the recording studio into a musical instrument in its own right. With concept albums from the Fourmyula and the La De Dahs, a concept EP from Tom Thumb, and a concept single from Shane!